move to node:14.15.1-alpine3.12

ref #24

Dockerfile

@@ -1,12 +1,5 @@
-# FROM node:alpine
-# WORKDIR /app
-# COPY ./package.json ./
-# RUN yarn
-# COPY ./ ./
-# ENTRYPOINT [ "yarn","dev" ]
-
 # Typescript Build
-FROM node:14
+FROM node:14.15.1-alpine3.12
 WORKDIR /app
 COPY package.json ./
 RUN yarn
@@ -15,9 +8,10 @@ COPY src ./src
 RUN yarn build
 # module install
 # final
-FROM node:14
+FROM node:14.15.1-alpine3.12
 COPY package.json ormconfig.js ./
 COPY --from=0 /app/dist dist
+# RUN npm install -g npm@7.1.2
 RUN npm i --production
 RUN npm i sqlite3
 RUN npm i pm2 -g